Phase Diagram of the Ternary System NaCl−NaBr−H2O at 348 K
- Resource Type
- Authors
- Rui-Zhi Cui; Yi Huang; Jing-Shu Xu; Shi-Hua Sang; Yong-Xia Hu
- Source
- Russian Journal of Physical Chemistry A. 92:2191-2195
- Subject
- Ternary numeral system
Materials science
Thermodynamics
02 engineering and technology
010402 general chemistry
01 natural sciences
Isothermal process
0104 chemical sciences
law.invention
Sodium bromide
chemistry.chemical_compound
020401 chemical engineering
chemistry
law
0204 chemical engineering
Physical and Theoretical Chemistry
Solubility
Crystallization
Dissolution
Solid solution
Phase diagram
- Language
- ISSN
- 1531-863X
0036-0244
The phase diagram of ternary system NaCl−NaBr−H2O at 348 K was studied by the isothermal equilibrium dissolution method. The solubilities of salts and densities of saturated solutions in the ternary system were determined experimentally. The equilibrium solid phases were also determined by chemical analysis and X-ray powder diffraction. Using the experimental data, the phase diagram of the ternary system was plotted. The diagram comprises one univariant curve and one stationary phase in crystallization filed of Na(Cl,Br).The ternary system was of solid solution type. Density values in the equilibrium solution increase with an increase in the sodium bromide concentration while decrease with an increase of the sodium chloride concentration. Based on the above experimental results, the solid solution compositions can fit well with a quadratic function of the equilibrium liquid composition.